Slide Adjustment Question - 2008 Melbourne 29D

[CZSteve]

Hello and thanks in advance from a newbie.
We're in the process of acquiring a 2008 Melbourne 29D; we've committed with a refundable hold deposit to secure while the dealer is addressing a couple issues such as replacing a broken window and correcting / adjusting the driver's side slide (kitchen & sofa). The dealer seems very confident that there's no problem adjusting the slide but want to check in here for any input 'IF' at all possible based upon this limited info I'm providing.

Issue / concern is that the driver's side slide is not drawing in tight for the lower half; there's a approximate 1/2 gap between the seal of the slide and body of the coach. Top top draws down tight against the coach and the gap on the lower section is consistent on both the right & left side.

From my research my understanding the slide is a Lippert system and I've reviewed the below video regarding adjustments.
Pics below showing the slide in and out; sorry I don't have close-up shots of the gap nor from below the slide.

First; I'm assuming/hoping the dealer is correct regarding being able to adjust without any concern They're an independent used dealer but have good reviews and 'seem' to be forth-coming. This rig was also just traded in where we were able to discover & make a pre-emptive deal before being listed; reason mentioning this is to maybe explain why not already corrected by the dealer before listing for sale.

Additional info: we also noticed there was an ~ 1/2" gap between the sub-floor and 'looked' like the sub-floor 'may' have dropped as a result of not being fully supported and thus I'm 'assuming' this may contribute to the not drawing tight as a result of binding.
- If the sub-floor in the slide is the issue and it's just a case of removing the sofa and kitchen base cabinet I'm not at all against tackling this project (especially if the price is right for the rig).
- ALSO: There are not any apparent signs of water damage and/or soft spots in the rig.

MY QUESTION:
1. Any walk-away concerns / red-flags based upon this limited info?
2. Given our price-point if the dealer balks at removing the furniture & cabinetry to address the slide sub-floor does it sound like may be just a 'relatively' simple case for a DIY repair? (I'm relatively handy FWIW).

Thanks in advance and apologies for the long-winded post,
Steve

 

[CZSteve]

Bump to add some additional info/pics hoping to shed some light and gain some intel.
QUESTIONS:
1. What type of slide mechanism is this?
2. Adjustment procedural?
(NOTE: I would not be surprised if part of the problem is something binding such as the sub-floor dropping down / our-of-alignment - if removing the sofa & kitchen base-cabinet is needed to replace the sub-floor I'm not at all against tackling that job).

FIRST: First two pics are from underneath of the dinette passenger slide showing rack & also what I assume is the access area for the motor to manually close IF needed (if we do purchase this rig I plan on cleaning this up)
Any direction on what type of slide mechanism this is on this Jayco Melbourne 29D?
At first I thought it was a thru-frame but upon looking again I 'assume' it is a rack-n-pinion electric operation but not 100% certain and most definitely looks different than the previous posted thru-frame type.

SECOND: Pics 3-5 are of the driver's side sofa/kitchenette area where the slide does not pull-tite at the bottom - Pics arranged showing top that's tight and following to middle and then bottom that has ~ 3/4" gap between the gasket and exterior side.

Thanks for y'all's time,
Steve

One & Two

Three - Five